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- How many pairs of similar triangles are there in the projective theorem? urgent
How many pairs of similar triangles are there in the projective theorem? urgent
3 pairs, △ABD∽△ADC, △ABD∽△ABC, △ADC∽△ABC.
Are you online? In △BAD and △ACD, ∠ B+∠ C = 90, ∠ DAC+∠ C = 90, ∠BDA =∞. The rest are all the same.
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